Feature
Iron
Calcium
Typical Dosage
8-18 mg daily for adults (varies by age and gender)
800-1000 mg daily
Best Form
Ferrous sulphate
Calcium Citrate
Key Benefits
5
6
Evidence Rating
★★★★
★★★★
Best Time
Take on an empty stomach with vitamin C for enhanced absorption; separate from calcium and caffeine by 2+ hours
With meals to enhance absorption; split doses are more effective
Iron Benefits
✓Supports oxygen transport via haemoglobin
✓Enhances energy production and reduces fatigue
✓Improves cognitive function and concentration
✓Supports immune system function
✓Essential for healthy red blood cell formation
Calcium Benefits
✓Bone strength and density
✓Teeth health and enamel protection
✓Muscle contraction and function
✓Nerve signal transmission
✓Heart rhythm regulation
✓Blood clotting
Can You Take Both Together?
In most cases, Iron and Calcium can be taken together safely. However, always check the interactions section of each supplement and consult a healthcare professional if you take medication.
Which Should You Choose?
Choose Iron if your primary goal is: supports oxygen transport via haemoglobin. Choose Calcium if your primary goal is: bone strength and density. Many people take both as they target different aspects of health.
Disclaimer: This comparison is for educational purposes only. Always consult a healthcare professional before starting any supplement.